› added 3 years ago

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TIL while the Snellen eye-chart is the most common, created in 1862, the Mayerle eye test chart created in 1907 tested acuity, astigmatism, muscular stength of the eyes and color vision

Read more resource.nlm.nih.gov

via reddit.com

DQdpj TIL that some Jeeps have "Easter Eggs" of designs of animals and other symbols that are hidden around the vehicle; with some found on the windshield or carved into the dashboard, under seats, and near the gas cap.
oEpR TIL Jack Black’s mother was one of the engineers who helped design the Hubble Space Telescope.
QN85M TIL an elephant trampled a woman to death then returned days later to her funeral to trample the body again
ADd1x TIL Los Angeles has an abandoned subway system
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